Smoke control and extraction design of overlength car ramp

Taking a length of 228.4 meter car ramp as an example, analyses the difficulties of the smoke control and extraction design for the overlength car ramp. Carries out the CFD simulation by using FDS software, and checks the concrete smoke extraction effect. Compares and analyses the smoke spread and visibility distribution under different conditions of vertical and horizontal smoke extraction, and finds out an efficient, safe and reliable smoke control and extraction solution.